Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
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Switch: SXCYIA794MD

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
402-846 9 Walthill NE 145J TERRA NOVA TELECOM INC. 630   2026-03-30   
402-878 9 Winnebago NE 145J TERRA NOVA TELECOM INC. 630   2026-03-30   
712-240 8 Spencer IA 145J TERRA NOVA TELECOM INC. 630   2026-03-28   
712-284 9 Alta IA 145J TERRA NOVA TELECOM INC. 630   2026-01-04   
712-305 3 Le Mars IA 145J TERRA NOVA TELECOM INC. 630   2026-07-05   
712-348 8 Matlock IA 145J TERRA NOVA TELECOM INC. 630   2026-01-04   
712-833 A Sioux City IA 145J TERRA NOVA TELECOM INC. 630      
712-845 9 Laurens IA 145J TERRA NOVA TELECOM INC. 630   2026-01-04   
712-880 7 Mapleton IA 145J TERRA NOVA TELECOM INC. 630   2026-01-04   

Last updated: Thu, 16 Jul 2026 02:21:55 UTC

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